Function convertPositionToOffset

server/src/common/positionUtils.ts:51–58

(position: DiagnosticTextPosition,
        lines: TextRangeCollection<TextRange>)

// Translates a position (line and col) into a file offset.
export function convertPositionToOffset(position: DiagnosticTextPosition,
        lines: TextRangeCollection<TextRange>): number | undefined {
    if (position.line >= lines.count) {
        return undefined;
    }

    return lines.getItemAt(position.line).start + position.column;
}